Fellowes Proton 180 Trimmer (5410302) Durable metal cutting base with integrated SafeCut cartridge storage compartment. Enclosed SafeCut stainless steel rotary blade ensures user safety. Cuts up to 10 sheets (20lb paper) at one time and offers a maximum 18 cutting width. Convenient SafeCut blade cartridges are interchangeable for increased design flexibility. Cutting guides for various paper sizes, photos and angled cuts plus variable paper clamp to ensure a precise cut.